North Center

In a Nutshell

Adjustable visor equipped with smart fabric that keeps sweat out of the runner’s eyes; in-store pickup at SweatVac Performance Wear only

The Fine Print

Promotional value expires 30 days after purchase. Amount paid never expires.Limit 10 per person. Limit 1 per visit. Valid only for option purchased. If your voucher is not redeemed 30 days after purchase, the amount paid will be refunded. Only available for in-store pickup and only for the option purchased at the listed location. Returns and exchanges must be initiated in-store and are subject to the merchant's standard return policy. Store hours for pickup are Monday–Friday 8:30 a.m.–6:00 p.m. CST. Not Valid with Groupon promo codes. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Offer is not eligible for Groupon promo codes or other discounts.

How to Pick Up In-Store

Visit participating location(s) during normal business hours to pick up your product(s).

Present your printed or mobile voucher in the store to claim your product(s).

Note: If your Groupon is not redeemed by the promotional value expiration date, the amount you originally paid will be refunded to you.

Sweat: Smelly and Clean

Sweat rids the body of water, but also of trace amounts of toxins. Read on for a quick look at the science of sweat.

The sweat glands are the body’s own fire-sprinkler system. They keep the temperature inside our skin livable by releasing water, which cools the body as it evaporates. Though mostly water and salt is excreted, some studies suggest that sweat glands—like the kidneys, liver, and colon—might rid the body of unwanted elements, such as toxic metals. A 2012 meta-review published in the Journal of Environmental and Public Health found reason for further investigation into sweat as a detoxification method. One study reviewed found that levels of arsenic, lead, and mercury in test subjects’ sweat went down after repeated sessions in a sauna.

Sweating in the Old Days

Regardless of how much sweat can actually aid detox efforts, humans have long felt that sweating has a cleansing or curative effect. Saunas have been a Finnish tradition since the 12th century, and healers often worked within them. (Finland still has about two saunas for every five people). Many tribes throughout the Americas have used sweat lodges for practical and spiritual purposes, from enhancing a shaman’s purification rituals to marking puberty to preparing for battle.

Bonus Points

Sweat comes from two sources: eccrine glands, scattered across the body for cooling, and apocrine glands, which are most concentrated in bacteria-rich regions such as the armpits and crotch. Apocrine glands are activated by stressful emotions, meaning that running from a bear will make you smell worse than running on a treadmill.

The ability to sweat varies wildly across the animal kingdom. For instance, horse sweat contains a foamy, soapy substance called latherin, which helps the sweat spread over horses’ large, oily bodies.